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• kthorngren Posts: 22,314Questions: 26Answers: 5,130

  April 2022 Answer ✓

  On line 5 the API for the particular column is gotten, ie, var column = this;. You can use column().index() to get the column index. Maybe add var colIndex = column.index(); below var column = this;``.

  If the index is 0, the first column, you will need to use a different regex expression in this statement:

                          column
                              .search( val ? '^'+val+'$' : '', true, false )
  

  The regex expression you use will be specific to your requirements but it might be as simple as removing the `+'$'.

  Next you might want to change the select options value to only be 4 characters if the column index is 0, ie, this code:

                  column.data().unique().sort().each( function ( d, j ) {
                      select.append( '<option value="'+d+'">'+d+'</option>' )
                  } );
  

  Kevin